Knowing high-pressure phase equilibrium is essential for the numerous applications of organic solvent-entrained supercritical carbon dioxide, as well for extraction as for antisolvent procedures. Phase equilibrium measurements on the carbon dioxide - methanol - dimethyl sulphoxide mixture are presented in the range of 308 K-323 K and 7.5 to approx. 11.5 MPa. Composition (mole fraction) was varied for each component in the ranges xCO2:0.75-0.88; xMeOH:0.042-0.21; and xDMSO:0.025-0.12. Measurements were done using a static synthetic method based on the observations of cloud points and redissolution points. Measurement results were well approximated by the Peng-Robinson equation of state.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
CH4O
methanol
3
C2H6OS
dimethyl sulfoxide
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.